1 The body produces too much cortisol hormone by itself (known as âendogenousâ Cushingâs syndrome).  A person takes large amounts of steroid medication to treat conditions such as asthma, rheumatoid arthritis or eczema. This is known as âexogenousâ Cushingâs syndrome.
Deficiency. A shortage or insufficiency. The amount by which federal Income Tax due exceeds the amount reported by the taxpayer on his or her return; also, the amount owed by a taxpayer who has not filed a return.
A deficiency is generally a lack of something. It may also refer to: 1  A deficient number, in mathematics, a number n for which Ï (n n. 2  Angular deficiency, in geometry, the difference between a sum of angles and the corresponding sum in a Euclidean plane.